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Current Reversals in a inhomogeneous system with asymmetric unbiased fluctuations

Bao-Quan Ai·Xian-Ju Wang·Guo-Tao Liu·Hui-Zhang Xie·De-Hua Wen·Wei Chen·Liang-Gang Liu
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Abstract

We present a study of transport of a Brownian particle moving in periodic symmetric potential in the presence of asymmetric unbiased fluctuations. The particle is considered to move in a medium with periodic space dependent friction. By tuning the parameters of the system, the direction of current exhibit reversals, both as a function of temperature as well as the amplitude of rocking force. We found that the mutual interplay between the opposite driving factors is the necessary term for current reversals.

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Bao-Quan Ai, Xian-Ju Wang, Guo-Tao Liu, Hui-Zhang Xie, De-Hua Wen, Wei Chen, Liang-Gang Liu. 2003-06-24. Current Reversals in a inhomogeneous system with asymmetric unbiased fluctuations. https://doi.org/10.1140/epjb/e2004-00089-9

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